CN110579374B - Water fullness prompting sampling device and method for underwater depth-fixed sampling - Google Patents
Water fullness prompting sampling device and method for underwater depth-fixed sampling Download PDFInfo
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- CN110579374B CN110579374B CN201910836204.1A CN201910836204A CN110579374B CN 110579374 B CN110579374 B CN 110579374B CN 201910836204 A CN201910836204 A CN 201910836204A CN 110579374 B CN110579374 B CN 110579374B
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Abstract
The invention discloses a water fullness prompting and sampling device for underwater depthkeeping sampling, which is characterized by comprising a take-up and pay-off mechanism, a lead, a water level measuring sensor and a sampling cylinder which are sequentially connected, wherein the lead is connected with the water level measuring sensor and comprises a first bearing line, a first lead and a second lead, and the first lead and the second lead are fixedly connected with the top end of the sampling cylinder; the top end of the sampling tube is provided with a first cover plate, the first cover plate is provided with an opening, the tail end of the first bearing line is connected with a connecting mechanism, the connecting mechanism is also connected with a second bearing line, the tail end of the second bearing line is connected with a cover body, the cover body is positioned in the sampling tube, when the connecting mechanism is in a closed state, the cover body can be close to and close the opening, and when the connecting mechanism is in a separated state, the cover body is far away from the opening; a floating ball for pushing the cover body is also arranged in the sampling tube. The invention can realize depth-fixed sampling, water full prompting and water full isolation, and ensure that a water sample is not mixed with upper water.
Description
Technical Field
The invention relates to the field of water quality monitoring of underground water and surface water, in particular to a water fullness prompting and sampling device and method for underwater depth-fixed sampling.
Background
In the groundwater quality sampling work, a well without water pumping conditions is often encountered, the groundwater is not exploited for a long time, the water in a well pipe is retained for a long time, the water quality can be influenced by the environment, and a certain difference exists between the water quality sampling work and the real groundwater. Therefore need carry out depthkeeping sampling to this well, be about to sampling device sinks to the sampling purpose and contains the depth of water layer, directly gathers this degree of depth groundwater, ensures simultaneously that the sampler keeps the encapsulated situation, does not sneak into upper water at the lift in-process.
The existing depth-fixed sampling device has a complex structure and a complex process of a sampler. For example, in the existing published literature, chinese patent CN201821833901.9 discloses a device for measuring water level in a well and collecting water samples, which combines a water level detector, realizes function conversion by sleeving rubber, is relatively cumbersome, does not perform structural optimization for water intaking operation, cannot accurately collect water samples with specific underwater depth, and is helpful for realizing layered collection of water samples.
Disclosure of Invention
Aiming at the defects of complex structure and complex process of a sampler of the existing sampling device, the invention aims to provide a water full prompting sampling device and method for underwater fixed-depth sampling, which can realize fixed-depth sampling, water full prompting and water full isolation and ensure that a water sample is not mixed with upper water.
The invention provides a water fullness prompting sampling device for underwater depth-fixed sampling.
The second purpose of the invention is to provide a water full prompting sampling method for underwater depth-fixed sampling.
In order to realize the purpose, the invention discloses the following technical scheme:
the invention discloses a water fullness prompting and sampling device for underwater depthkeeping sampling, which is characterized by comprising a take-up and pay-off mechanism, a lead, a water level measuring sensor and a sampling cylinder which are sequentially connected, wherein the lead is connected with the water level measuring sensor and comprises a first bearing line, a first lead and a second lead, and the first lead and the second lead are fixedly connected with the top end of the sampling cylinder; the top end of the sampling tube is provided with a first cover plate, the first cover plate is provided with an opening, the tail end of the first bearing line is connected with a connecting mechanism, the connecting mechanism is also connected with a second bearing line, the tail end of the second bearing line is connected with a cover body, the cover body is positioned in the sampling tube, when the connecting mechanism is in a closed state, the cover body can be close to and close the opening, and when the connecting mechanism is in a separated state, the cover body is far away from the opening; a floating ball for pushing the cover body is also arranged in the sampling tube. According to the invention, the underwater depth positioning of the sampling barrel can be realized through the water level measuring sensor, the water sampling progress in the sampling barrel is determined through the first lead and the second lead, and the cover body is controlled to open and close through the connecting mechanism so as to enable water to enter the sampling barrel.
Further, the bottom side of the first cover plate is connected with a baffle plate for water isolation.
Furthermore, the first lead and the second lead are respectively connected with electrodes, and the electrodes are positioned between the baffle and the wall of the sampling barrel.
Further, the medial surface of sample bucket connects the strip, the strip is located first apron with between the bottom of sample bucket.
Furthermore, the strip-shaped parts comprise a plurality of strip-shaped parts, gaps are formed among the strip-shaped parts, and the floating ball is connected with the end parts of the strip-shaped parts beside the gaps through ropes.
Furthermore, the plurality of strip-shaped pieces are all located on the same plane parallel to the first cover plate, and the length of the rope is larger than the distance between the plane where the strip-shaped pieces are located and the first cover plate.
Further, the connecting mechanism comprises a first connecting body and a second connecting body, the second connecting body is provided with a groove capable of being embedded with the first connecting body, and the first connecting body and the second connecting body can be embedded through the groove.
Furthermore, the first connecting body is connected with a first bearing line, and the second connecting body is connected with a second bearing line.
Further, the second lead and the first lead are also connected with an alarm, and when the first lead is connected with the second lead, the first lead, the second lead and the alarm form a passage;
the water level measuring sensor is connected with the warning indicator.
The invention discloses a water full prompting sampling method for underwater depth-fixing sampling, which comprises the following steps:
the take-up and pay-off mechanism releases the sampling cylinder downwards, the water level in the well reaches the electrodes on the two sides, the electrodes, the first lead, the second lead and the warning device form a passage, and the warning device prompts the water level to reach the set depth; it should be noted that the distance between the electrode and the opening of the sampler is the fixed depth, i.e. the distance from the water surface to the opening is the set depth indicated by the alarm.
After the underwater cable reaches the set depth, the first bearing rope is pulled to disconnect the connecting mechanism, and the first wire and the second wire bear the weight;
the cover body connected with the second bearing rope falls under the action of gravity, the water inlet of the sampling cylinder is opened, and water sample collection is started;
the water level in the well reaches the electrodes at the two sides, the electrodes, the first lead, the second lead and the warning device form a passage, and the warning device prompts that the sampler is full of water;
when the sampler collects a water sample, the floating ball floats upwards along the water surface and pushes against the cover body, and the water inlet of the sampler is closed;
and lifting the sampler to the ground or a working platform, and opening the bottom end of the sampler to finish sampling.
Compared with the prior art, the invention has the following beneficial effects:
1) according to the invention, the bearing rope and the floating ball are adopted to control the cover body, the opening can be opened and closed respectively, an operator determines the opening time, and the opening is automatically closed after the water is filled, so that the accurate water sampling in the target water depth area can be realized.
2) In the invention, the position of the rope relative to the fixed floating ball is adopted, so that the floating ball can easily push the cover body, the complexity of the whole device is reduced, and the working state of the sampling device can be accurately controlled.
3) According to the invention, the connecting mechanism is adopted for bearing, when the water reaches a specific water depth, the connecting mechanism can be in a separated state by pulling and breaking away forcibly, so that the cover body falls, the cover body is not attached to and blocks the opening any more, and the first lead and the second lead are enabled to bear the weight, so that the water sample can be collected in time after the water reaches a target water depth area, the complex control is not needed, the complexity of the device is simplified, and the same effect can be achieved.
4) In the invention, the cover body is used for sealing the opening, and the opening is effectively isolated from the external water environment after sampling is finished; the floating ball floats upwards along with the water surface in the well, and props against the cover body when the water is full, and the water inlet of the sampler is closed, so that the water sample is prevented from being mixed.
5) According to the invention, the water level warning device is utilized to warn the water level in the sampling cylinder, the sampler can automatically alarm and prompt when being filled with water samples, the phenomenon that the sampler is not filled with water or is not lifted by a sampler in time after being filled with water is avoided, and the sampling efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view showing the general construction of embodiment 1 including the connecting mechanism in a separated state,
FIG. 2 is a schematic view showing the structure of example 1 including the connection mechanism and the sampling tube in a separated state and the inner part of the sampling tube,
FIG. 3 is a schematic top view of a sample cylinder and its internal components in example 1,
fig. 4 is a circuit diagram in embodiment 1.
In the figure, 1, a connecting mechanism, 21, a first lead, 22, a second lead, 3, an opening, 4, a hanging ring, 5, an electrode, 6, a baffle, 7, a cover body, 8, a strip-shaped member, 9, a rope, 10, a floating ball, 11, a sampling cylinder, 12, an electrode type water level measuring sensor, 13, a first bearing line, 14, an alarm, 15, a wire spool handle, 16, a first cover plate, 231, a first bearing line, 232 and a second bearing line.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background art, aiming at the defects of complicated structure and complicated process of the sampler of the existing sampling device, the invention aims to provide a water full prompting sampling device and method for underwater depth-fixed sampling, which can realize depth-fixed sampling, water full prompting and water full isolation, ensure that a water sample is not mixed with upper water, and further explain the invention by combining the attached drawings and the specific implementation mode.
Example 1
Referring to fig. 1 to 3, the present embodiment discloses a water full prompting sampling device for underwater depth-fixed sampling, which includes a take-up and pay-off mechanism, a conducting wire and a sampling cylinder 11, which are connected in sequence, wherein the conducting wire includes a first bearing line 231, a first conducting wire 21 and a second conducting wire 22, and the first conducting wire 21 and the second conducting wire 22 are fixedly connected to the top end of the sampling cylinder 11; referring to fig. 1, the first load-bearing line 231, the first conducting wire 21 and the second conducting wire 22 are connected by weaving, gluing, etc. to form a strand body, so as to be wound or paid out by a winding and paying-off mechanism, and at the end of the strand body, the strand body is divided into the first conducting wire 21, the second conducting wire 22 and the first load-bearing line 231 to respectively connect the components. The take-up and pay-off mechanism used in the embodiment is a winding roll, which is a device commonly used in the field of electricians, and the structure and the using method of the take-up and pay-off mechanism are not described in detail herein.
The sampling tube 11 is a cylinder, and both the top end and the bottom end of the sampling tube are provided with cover plates, the first cover plate 16 is arranged at the top end of the sampling tube 11, the second cover plate is arranged at the bottom end of the sampling tube 11, the first cover plate 16 is provided with an opening 3, and the second cover plate is embedded or connected with the bottom end of the sampling barrel so as to be opened conveniently. As to how the second cover plate is engaged or connected to the sampling tube 11, which is a common technique in the prior art, the second cover plate and the bottom end of the sampling tube 11 can be screwed together.
The first bearing line 231 is connected with the connecting mechanism 1, the connecting mechanism 1 is also connected with the second bearing line 232, the tail end of the second bearing line 232 is connected with the cover body 7, the cover body 7 is positioned in the sampling tube 11, and when the connecting mechanism 1 is in a closed state, the cover body 7 can be close to and close the opening 3, so that water is prevented from entering; when the connecting mechanism 1 is in a separated state, the cover body 7 is far away from the opening 3; a strip-shaped piece 8 is further arranged in the sampling tube 11, and a floating ball 10 used for pushing the cover body 7 is arranged in the sampling tube 11. The cover body 7 is controlled by the bearing rope and the floating ball 10, the opening 3 can be opened and closed respectively, an operator determines the time for opening the opening 3, and the opening 3 is automatically closed after the water is filled, so that the water sample can be accurately collected in a target water depth area; meanwhile, the opening 3 is sealed by the cover body 7, and the sampling is effectively isolated from the external water environment; the floating ball 10 floats upwards along the water surface, when the water is full, the floating ball props against the cover body 7, the water inlet of the sampler is closed, and the water sample is prevented from being mixed.
The baffle 6 for water isolation is connected to the bottom side of the first cover plate 16, and it can be understood that the baffle 6 is annular, an annular space for installing the electrode 5 is formed between the baffle 6 and the wall of the sampling cylinder 11, the annular space can only enter from the lower part of the annular space, and the baffle 6 is used for preventing the water from the opening 3 from wetting the electrode 5 to cause inaccurate measurement.
The first lead 21 and the second lead 22 are respectively connected with the electrode 5, and the electrode 5 is positioned between the baffle 6 and the wall of the sampling barrel; it will be appreciated that when the coupon 11 and/or the first cover 16 are made of a conductive material such as iron, the coupon 11 is electrically conductive, so that when the first and second leads 21 and 22 and the electrode 5 are both connected to the coupon 11 and/or the first cover 16, the first and second leads 21 and 22 need not be directly connected to the electrode 5; when the sampling tube 11 and/or the first lid 16 are non-conductive, the first wire 21 and the second wire 22 need to be connected to the electrode 5 through the sampling tube 11 and/or the first lid 16.
The strip-shaped member 8 comprises two sections which are separated from each other, specifically, a gap is formed between the two sections of the strip-shaped member 8, the gap is used for accommodating the floating ball 10 to pass through, and the outer edge of the strip-shaped member 8 is connected to the inner side surface of the sampling barrel.
The diameter of the float 10 is smaller than the gap between the two strips 8, it being understood that the strips 8 only serve as a fixing element for the float 10, for limiting the movement range of the float 10, and the float 10 can push the cover 7 against the bottom side of the first cover 16, thus closing the opening 3.
It will be appreciated that the top side of the cover 7 is connected to a suspension loop 4 for connection of a second load-bearing rope.
The float 10 is connected to the bar 8 by a cord 9 to fix the position of the float 10 and to keep the float 10 able to rise and fall with the water level. The position of the rope 9 relative to the fixed floating ball 10 is adopted, so that the floating ball 10 can easily penetrate through the gap between the two sections of strip-shaped pieces 8, the cover body 7 is pushed, the complexity of the whole device is reduced, and meanwhile, the working state of the sampling device can be accurately controlled.
The connection mechanism 1 includes a first connection body and a second connection body having a groove capable of being fitted with the first connection body, the first connection body and the second connection body being capable of being fitted with each other through the groove. It can be understood that the first connection body may be in a column shape, the groove of the second connection body is adapted to the shape of the first connection body, the first connection body is engaged with the second connection body, and the first connection body can be separated from the second connection body when a tensile force is applied to the first connection body or the second connection body. By adopting the connecting mechanism 1 for bearing, when the water reaches a specific water depth, the connecting mechanism 1 can be in a separated state by pulling and breaking forcibly, so that the cover body 7 falls, the cover body 7 is not attached to and blocks the opening 3 any more, and the first lead 21 and the second lead 22 are enabled to bear the weight, thereby ensuring that the water sample can be collected in time after the water reaches a target water depth area, needing no complicated control, simplifying the complexity of the device and simultaneously still achieving the same effect.
The first connection body is connected to a first load line 231, and the second connection body is connected to a second load line 232.
The second wire 22 and the first wire 21 are also connected with the alarm 14, and when the first wire 21 is connected with the second wire 22, the first wire 21, the second wire 22 and the alarm 14 form a passage. It will be appreciated that the alarm 14 may be a buzzer or an LED warning light. The water level warning device is utilized to warn the water level in the sampling cylinder 11, the sampler is automatically alarmed and prompted when being filled with a water sample, the phenomenon that the sampler is not filled with water and is still not lifted by a sampler is avoided, and the sampling efficiency is improved. In order to determine the water depth, the wire is further connected to an electrode type water level measuring sensor, which is a common technique in the art and is not described herein again.
Specifically, referring to fig. 4, the first wire 21, the second wire 22, the electrode 5, the conductive body (water), the battery, the alarm 14 and the first switch form a first loop, and meanwhile, the water level warning device and the second switch are connected in parallel to the first loop, and the parallel connection points are respectively located on the first loop outside the battery and outside the alarm 14. In operation, the electrode type water level measuring sensor 12 and the electrode 5 operate independently, but the same battery and the alarm 14 may be used.
The water-full prompting sampling device for underwater depth-fixed sampling disclosed by the embodiment is utilized to sample groundwater of a water well, and the sampling cylinder 11 sinks to the depth of a water-bearing layer of a sampling target, so that the groundwater of a target water-bearing layer with relatively good flowing conditions can be collected; meanwhile, the sampler keeps a closed state in the lifting process and does not mix into the upper water body. Can also be used for sampling the deep layer of surface water. The volume of water that can be taken in one time is about 1.5L.
Example 2
A water full cue sampling method for underwater depthkeeping sampling, which employs the water full cue sampling device for underwater depthkeeping sampling as described in embodiment 1, comprising the steps of:
1) the take-up and pay-off mechanism releases the sampling cylinder 11 downwards, the electrode type water level measuring sensor 12 senses the water level, and the alarm 14 prompts that the set depth is reached;
2) after the underwater cable reaches the set depth, the first bearing rope is pulled to disconnect the connecting mechanism 1, and the first lead 21 and the second lead 22 bear the weight;
3) the cover body 7 connected with the second bearing rope falls under the action of gravity, the opening 3 of the sampling cylinder 11 is opened, and water sample collection is started;
4) the water level in the sampling barrel reaches the electrodes 5 at two sides, the electrodes 5 form a passage with the first lead 21, the second lead 22 and the alarm 14, and the alarm 14 prompts that the sampler is full of water;
5) when the sampler collects a water sample, the floating ball 10 floats upwards along the water surface and pushes against the cover body 7, and the water inlet of the sampler is closed;
6) and lifting the sampler to the ground or a working platform, and opening the bottom end of the sampler to finish sampling.
It will be appreciated that in steps 3), 4), the presence of the baffle prevents water from the opening 3 from wetting the electrode 5 during the stage water process.
It should be noted that, before step 1), the position of the electrode type water level measuring sensor 12 on the guide is required to set the depth of collecting the water sample.
It should be noted that, in this embodiment, in order not to affect the function of the alarm prompting when the water is full at all, after step 1), the alarm 14 prompts, and then the wire is lifted upwards by a certain height, for example, 2-5 cm, and is fixed at a position above the water surface, so that the electrode is separated from the water surface. The alarm stops sounding. In the step 2), the first bearing rope is pulled, after the connecting mechanism is disconnected, the first lead and the second lead bear the weight, the sampler descends slightly, and the distance between the opening 3 and the water surface is a fixed depth, namely the depth set underwater.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A water fullness prompting and sampling device for underwater depth-fixed sampling is characterized by comprising a take-up and pay-off mechanism, a lead, a water level measuring sensor and a sampling barrel which are sequentially connected, wherein the lead is connected with the water level measuring sensor and comprises a first bearing line, a first lead and a second lead, the first lead and the second lead are fixedly connected with the top end of the sampling barrel, the first lead and the second lead are respectively connected with an electrode, and the electrode is positioned between a baffle and the barrel wall of the sampling barrel; the top end of the sampling tube is provided with a first cover plate, the first cover plate is provided with an opening, the bottom side of the first cover plate is connected with a baffle plate for water isolation, the second lead and the first lead are also connected with an alarm, and when the first lead is communicated with the second lead, the first lead, the second lead and the alarm form a passage;
the water level measuring sensor is connected with the warning indicator, the tail end of the first bearing line is connected with the connecting mechanism, the connecting mechanism is further connected with the second bearing line, the tail end of the second bearing line is connected with the cover body, the cover body is positioned in the sampling cylinder, when the connecting mechanism is in a closed state, the cover body can be close to and close the opening, and when the connecting mechanism is in a separated state, the cover body is far away from the opening; a floating ball for pushing the cover body is also arranged in the sampling tube;
the inner side surface of the sampling barrel is connected with a strip-shaped piece, and the strip-shaped piece is positioned between the first cover plate and the bottom end of the sampling barrel;
the floating ball is connected with the end part of the strip-shaped piece beside the gap through a rope.
2. The water full prompting sampling device for underwater depthkeeping sampling according to claim 1, wherein a plurality of the strip-shaped members are all positioned on the same plane parallel to the first cover plate, and the length of the rope is larger than the distance between the plane where the strip-shaped members are positioned and the first cover plate.
3. The fullness prompting sampling device for sampling at a fixed depth underwater as claimed in claim 1, wherein the connecting mechanism comprises a first connecting body and a second connecting body, the second connecting body has a groove capable of being engaged with the first connecting body, and the first connecting body and the second connecting body are capable of being engaged with each other through the groove.
4. The water full cue sampling device for underwater depthkeeping sampling of claim 3 wherein the first connector is connected to a first load line and the second connector is connected to a second load line.
5. A water full prompting sampling method for underwater depth-keeping sampling, which uses the water full prompting sampling device for underwater depth-keeping sampling according to any one of claims 1 to 4, and is characterized by comprising the following steps:
the take-up and pay-off mechanism releases the sampling cylinder downwards, the electrode type water level measuring sensor senses the water level, and the alarm prompts that the set depth is reached;
after the underwater cable reaches the set depth, the first bearing rope is pulled to disconnect the connecting mechanism, and the first wire and the second wire bear the weight;
the cover body connected with the second bearing rope falls under the action of gravity, the opening of the sampling cylinder is opened, and water sample collection is started;
the water level in the sampling barrel reaches the electrodes at the two sides, the electrodes, the first lead, the second lead and the alarm form a passage, and the alarm prompts that the sampler is full of water;
when the sampler collects a water sample, the floating ball floats upwards along the water surface and pushes against the cover body, and the water inlet of the sampler is closed;
and lifting the sampler to the ground or a working platform, and opening the bottom end of the sampler to finish sampling.
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| CN111504841A (en) * | 2020-04-30 | 2020-08-07 | 王一帆 | Water conservancy hydrology sand content monitoring device and method |
| CN113176115A (en) * | 2021-06-02 | 2021-07-27 | 安徽中青检验检测有限公司 | A sampling device for water quality testing |
| CN115326491B (en) * | 2022-09-01 | 2023-05-05 | 岳阳职业技术学院 | Layered water body sampler for water environment detection |
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